1851 (Mar. 26) Valparaiso, Chile to San Francisco Cal., datelined blue folded letter with two strikes of "VAPOR N. GRANADA" of straightline handstamp with name of PSNC steamer New Granada from Valparaiso to Panama, then by PMSC Tennessee from Panama May 1st to San Francisco arriving May 20th, San Francisco red "30" framed due handstamp applied on arrival, Very Fine, a scarce name-of-ship marking. Estimate  $300 - 400. $0 (Image)